Follow the button prompts to yank the snow shovel out of the ice block. Walk outside and clear away all the piles of snow. The key to the gate is under a pile of snow on the right. Down the path to the left is a Swap Zone.

To the left of the Swap Zone is a building with one of those Treasure Chests (2/4) locked with a mini-game. Here's how to open the chest.

Send Blue down the leftmost path and he'll pick up his bolt.

Move Blue left and he'll end up at the bottom. Move him to the center area.

Send Green up the rightmost path and he'll pick up his bolt.

Move Green right and he'll make it to the top. Have him join Blue in the center area.

Past the arena with the Evilized Snowrollers, move the block up one and rotate the laser to melt the ice on both sides. To the right is a Swap Zone and to the left is a hut. Push the block to the left to reach it.

Wander the area, using the snow shovel on every pile of snow you come across. Eventually you'll rescue five yetis and earn a Winged Sapphire.

Near the Elemental Gate you'll find a pile of snow with a pair of Lost Mittens (2/4) floating above them. You'll find the snow shovel up the path to the right. Rotate the laser to melt the ice it's encased in.

Move the block to the bottom left to reach the pile of snow that's hiding the key to the gate.

Through the gate and up the path to the right is a telescope. Look in the telescope and zoom in on the sparkle to unearth a treasure you can pick up later in the chapter.

Fight your way up the path to the left. Push the block to the left and use it to climb up to the laser. Push the laser off the edge then, drop off the back of the area. Turn the wheel here and a series of platforms will raise that will allow you to reach the Soul Gem (1/2).

Across the way from the Elemental Gate is another pair of Lost Mittens (3/4).

Further up the path is a Giant Chest. Treasure inside.

Board the airship to find the two missing snowmen and take them back to the catapult so you can operate it and destroy the remaining enemy airships. This time you'll have to worry about them shooting back. Try to deflect their shots with your own. Once they're gone, you'll have the key to unlock the gate to the next area.

Manipulate the blocks and laser to free the snowman trapped in the block of ice on the right. Swing the laser to the left to melt the ice blocking the path to the final pair of Lost Mittens (4/4). There's a hut right next to them.